ENGLISH-90
Explanation of optional functions
2Way solenoid valve
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When installing multiple number of outdoor units to a common water pipe, 2way valve will cut the cooling water supply
to an outdoor unit that is not operating, so it will increase the overall efficiency of the system . 2Way solenoid valve will
operate automatically depending on the operation status of the indoor and outdoor units . (Outputs contact signal)
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You may select either internal or external power cable connection for the 2way solenoid valve .
PUMP OUT 2WAY V/V FLOW S/W
Flow control
(External power)
Power source
(Internal power)
Water Hub
PBA
External controller
2Way solenoid valve
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❋
Connect the 2way solenoid valve cable to the 2way valve terminal regardless of the polarity .
(However, Use external power if the load of solenoid valve is maximum 250 V and current over 0 .2 A .)
Flow control
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After setting the outdoor unit option switch, you may connect variable flow control valve that is controlled at 0 ~ 10 V of
input signal .
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If the power of variable flow control valve is AC 220-240V, you may use the internal power of the outdoor unit .
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When applying the DC 24 V flow control valve, use Transformer kit MVR-TK024 (optional) .
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Use the external power if the load of variable solenoid valve is maximum 250 V and current over 0 .2 A .)
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Output range of the variable flow control valve is different depending on the setting of the outdoor unit option switch
(Refer to 'Setting key operation and checking the view mode with tact switch' on page 76)
PUMP OUT 2WAY V/V FLOW S/W
Flow control
(External power)
Power source
(Use internal
power)
Water Hub
PBA
❋
❋
When valve load is over 0 .2 A use external power .
Variable flow
control valve
